Sunday, 24 July 2011

Sigma 70-300mm f/4-5.6 DG Macro Telephoto Zoom Lens for Pentax and Samsung SLR Cameras

Telephoto zoom lens with excellent cost performance and optimised for use with digital SLR cameras Capable of macro photography this lens has a 1:2 maximum close-up magnification at the 300 mm focal length. It's the ideal high performance lens for portraits sports photography nature photography and other types of photography that frequently use the telephoto range. SLD (Special Low Dispersion) glass We used SLD (Special Low Dispersion) glass in this lens for excellent correction of chromatic aberration. This also corrects for fluctuation of aberration due to focusing. The new multi layer lens coating reduces flare and ghosting a common problem with digital cameras and also creates an optimum colour balance. Macro shooting with maximum magnification 1:2 The minimum focusing distance is 1.5 m/59 inches at all zoom settings. It also has a switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2. Without changing the distance between camera and subject you can change the shooting magnification

  • Optimized for use with digital SLR cameras

  • Multi-layer lens coating and lens design reduces flare and ghosting

  • Minimum focusing distance is 59 inches at all zoom settings

  • Features 14 lens elements in 10 Groups

  • High-performance lens ideal for portraits sports photography nature photography



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Friday, 22 July 2011

Tamron AF 17-50mm F/2.8 SP XR Di II VC (Vibration Compensation) Zoom Lens for Nikon Digital SLR Cameras

The new SP 17-50mm F/2.8 XR Di II VC covers the very popular 17-50mm focal length range (equivalent to 26-78mm in the full-frame 35mm format ) making it extremely versatile. Its wide aperture and outstanding performance provide practical advantages in low-light shooting and aesthetic image control thereby enriching the user's range of creative expression. The new lens delivers impressive sharpness and striking contrast over its entire focal-length and aperture range and at its maximum aperture of f/2.8 it produces beautiful images enhanced by shallow depth of- field and smooth natural transitions in out-of-focus areas of the image (i.e. excellent bokeh.) The new lens is equipped with Tamron's proprietary Vibration Compensation (VC) image stabilization mechanism which controls the effects of camera shake in three planes. VC provides more opportunities for sharp hand-held photography at the slow shutter speeds needed when shooting in low-light conditions (e.g. night or indoor scenes) dramatically enhancing the user's level of photographic freedom.

  • Compact Fast Zoom with VC (Vibration Compensation).

  • Fast Constant F/2.8 Aperture.

  • For use on APS-C size DSLR cameras.

  • 11.4-Inch minimum focusing distance / 1: 4.8 Maximum magnification ratio.

  • Internal Focusing.



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